<template>
  <div>
    <h1>{{id ? '编辑' : '新建'}}文章</h1>
    <el-form label-width="120px"  @submit.native.prevent="save">
      <el-form-item label="分类">
        <el-select v-model="model.categories" multiple placeholder="请选择" >
          <el-option
            v-for="item in categories"
            :key="item._id"
            :label="item.name"
            :value="item._id"
            >
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="标题">
        <el-input v-model="model.title"></el-input>
      </el-form-item>
      <el-form-item label="标题">
        <vue-editor v-model="model.body" useCustomImageHandler @image-added="handleImageAdded"/>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" native-type="submit">保存</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { VueEditor } from 'vue2-editor'
export default {
  components: {
    VueEditor
  },
  props: ['id'],
  data () {
    return {
      model: {},
      categories: []
    }
  },
  methods: {
    async save () {
      if (this.id) {
        await this.$http.put(`/rest/articles/${this.id}`, this.model)
      } else {
        await this.$http.post('/rest/articles', this.model)
      }
      this.$router.push('/articles/list')
      this.$message({
        message: '保存成功',
        type: 'success'
      })
    },
    async fetch () {
      const res = await this.$http.get(`/rest/articles/${this.id}`)
      this.model = res.data
    },
    // async fetchCategories () {
    //   const res = await this.$http.get('/rest/categories')
    //   this.categories = res.data
    // },
    async fetchCategories () {
      const url = '/rest/category/category/subList?parentName=新闻分类'
      const res = await this.$http.get(url)
      const { code, data } = res.data
      if (code === 1) {
        this.categories = data
      }
    },
    // 富文本编辑器里面的图片上传
    async handleImageAdded (file, Editor, cursorLocation, resetUploader) {
      const formData = new FormData()
      formData.append('file', file)
      const res = await this.$http.post('/upload', formData)
      Editor.insertEmbed(cursorLocation, 'image', res.data.url)
      resetUploader()
    }
  },
  created () {
    // console.log(this.id)
    this.id && this.fetch()
    this.fetchCategories()
  }
}
</script>
